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Yu X, Ding X, Yao Y, Gao W, Wang C, Wu C, Wu C, Wang B, Wang L, Zou Z. Layered High-Entropy Metallic Glasses for Photothermal CO 2 Methanation. Adv Mater 2024:e2312942. [PMID: 38354694 DOI: 10.1002/adma.202312942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/07/2024] [Indexed: 02/16/2024]
Abstract
High entropy alloys and metallic glasses, as two typical metastable nanomaterials, have attracted tremendous interest in energy conversion catalysis due to their high reactivity in nonequilibrium states. Herein, a novel nanomaterial, layered high entropy metallic glass (HEMG), in a higher energy state than low-entropy alloys and its crystalline counterpart due to both the disordered elemental and structural arrangements, is synthesized. Specifically, the MnNiZrRuCe HEMG exhibits highly enhanced photothermal catalytic activity and long-term stability. An unprecedented CO2 methanation rate of 489 mmol g-1 h-1 at 330 °C is achieved, which is, to the authors' knowledge, the highest photothermal CO2 methanation rate in flow reactors. The remarkable activity originates from the abundant free volume and high internal energy state of HEMG, which lead to the extraordinary heterolytic H2 dissociation capacity. The high-entropy effect also ensures the excellent stability of HEMG for up to 450 h. This work not only provides a new perspective on the catalytic mechanism of HEMG, but also sheds light on the great catalytic potential in future carbon-negative industry.
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Affiliation(s)
- Xiwen Yu
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative innovation center of advanced microstructures, College of Engineering and Applied Sciences, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
| | - Xue Ding
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Central Ave, Shenzhen, 518172, China
| | - Yingfang Yao
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative innovation center of advanced microstructures, College of Engineering and Applied Sciences, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Central Ave, Shenzhen, 518172, China
- National Laboratory of Solid State Microstructures, Nanjing University, School of Physics, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
| | - Wanguo Gao
- National Laboratory of Solid State Microstructures, Nanjing University, School of Physics, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
| | - Cheng Wang
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative innovation center of advanced microstructures, College of Engineering and Applied Sciences, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
| | - Chengyang Wu
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative innovation center of advanced microstructures, College of Engineering and Applied Sciences, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
| | - Congping Wu
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative innovation center of advanced microstructures, College of Engineering and Applied Sciences, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- National Laboratory of Solid State Microstructures, Nanjing University, School of Physics, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
| | - Bing Wang
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative innovation center of advanced microstructures, College of Engineering and Applied Sciences, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- National Laboratory of Solid State Microstructures, Nanjing University, School of Physics, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
| | - Lu Wang
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Central Ave, Shenzhen, 518172, China
| | - Zhigang Zou
- Eco-materials and Renewable Energy Research Center (ERERC), Collaborative innovation center of advanced microstructures, College of Engineering and Applied Sciences, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen, Central Ave, Shenzhen, 518172, China
- National Laboratory of Solid State Microstructures, Nanjing University, School of Physics, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- Jiangsu Key Laboratory for Nano Technology, Nanjing University, Hankou Road, Gulou, Nanjing, Jiangsu, 210093, China
- Macau Institute of Systems Engineering, Macau University of Science and Technology, Avenida Wai Long, Taipa, Macau, 999078, China
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Ma Z, Kong K, Yin Y, Guo Z, Ma X, Lin Q, Wang J, Shen Y, Lu X, Xu X, Kong X, Liu Z, Tang R. High Mechanical Strength Alloy-like Minerals Prepared by Inorganic Ionic Co-cross-linking. Adv Mater 2024; 36:e2308017. [PMID: 38009645 DOI: 10.1002/adma.202308017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 11/01/2023] [Indexed: 11/29/2023]
Abstract
Alloys often combine different metals to generate superior mechanical properties. However, it is challenging to prepare high mechanical strength minerals with similar strategies. Using calcium carbonate (CaC) and calcium phosphate (CaP) as examples, this work synthesizes a group of compounds with the chemical formulas Ca(CO3 )x (PO4 )2(1- x )/3 (0 < x < 1, CaCPs) by cross-linking ionic oligomers. Unlike mixtures, these CaCPs exhibit a single temperature for the phase transition from amorphous to crystallized CaC (calcite) and CaP (hydroxyapatite). By heat-induced synchronous crystallization, dual-phase CaC/CaP with continuous crystallized boundaries are resembled to alloy-like minerals (ALMs). The mechanical properties of the ALMs are adjusted by tailoring their chemical compositions to reach a hardness of 5.6 GPa, which exceed those of control calcite and hydroxyapatite samples by 430% and 260%, respectively. This strategy expands the chemical scope of inorganic materials and holds promise for preparing high-performance minerals.
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Affiliation(s)
- Zaiqiang Ma
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Kangren Kong
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Yu Yin
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Zhengxi Guo
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Xiaoming Ma
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Qingyun Lin
- Center of Electron Microscopy, School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Jie Wang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Yinlin Shen
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
| | - Xingyu Lu
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, Instrumentation and Service Centre for Molecular Sciences, Westlake University, Hangzhou, 310024, China
| | - Xurong Xu
- Qiushi Academy for Advanced Studies, Zhejiang University, Hangzhou, 310027, China
| | - Xueqian Kong
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhaoming Liu
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Zhejiang University, Hangzhou, 310027, China
| | - Ruikang Tang
- Department of Chemistry, Zhejiang University, Hangzhou, 310058, China
- State Key Laboratory of Silicon and Advanced Semiconductor Materials, Zhejiang University, Hangzhou, 310027, China
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Zhang S, Yi W, Zhong J, Gao J, Lu Z, Zhang L. Computer Alloy Design of Ti Modified Al-Si-Mg-Sr Casting Alloys for Achieving Simultaneous Enhancement in Strength and Ductility. Materials (Basel) 2022; 16:306. [PMID: 36614645 PMCID: PMC9822033 DOI: 10.3390/ma16010306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/12/2022] [Accepted: 12/23/2022] [Indexed: 06/17/2023]
Abstract
In this paper, an efficient design of a Ti-modified Al-Si-Mg-Sr casting alloy with simultaneously enhanced strength and ductility was achieved by integrating computational thermodynamics, machine learning, and key experiments within the Bayesian optimization framework. Firstly, a self-consistent Al-Si-Mg-Sr-Ti quinary thermodynamic database was established by the calculation of phase diagram method and verified by key experiments. Based on the established thermodynamic database, a high-throughput Scheil-Gulliver solidification simulation of the A356-0.005Sr alloy with different Ti contents was carried out to establish the "composition-microstructure" quantitative relationship of the alloy. Then, by combining the computational thermodynamic, machine learning, and experimental data within the Bayesian optimization framework, the relationship "composition/processing-microstructure-properties" of A356-0.005Sr with different Ti contents was constructed and validated by the key experiments. Furthermore, the optimum alloy composition of the Ti-modified A356-0.005Sr casting alloy was designed based on this integration method with the Bayesian optimization framework and verified by the experiments. It is anticipated that the present integration method may serve as a general one for the efficient design of casting alloys, especially in the high-dimensional composition space.
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Affiliation(s)
- Shaoji Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Wang Yi
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Jing Zhong
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Jianbao Gao
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
| | - Zhao Lu
- Guangxi Key Laboratory of Information Materials, School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 530004, China
| | - Lijun Zhang
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
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